Electric heating load control method for reducing power shortage of power grid

Abstract

The invention discloses an electric heating load control method for reducing power grid power vacancy, and the method comprises the steps: building a first-order ETP model of an electric heating load,and equivalently converting the ETP model into a virtual energy storage thermal parameter model (as shown in an attached drawing of an abstract); performing discretization and linearization processing on the model; establishing a virtual energy storage control strategy with the priority of the virtual energy storage charge state of the electric heating load; and according to the control function,carrying out electric water heater scheduling on the user who signs the control right assignment protocol in a time period requiring power grid power vacancy reduction, thereby achieving power vacancy reduction in the peak load period of the power grid. The control strategy provided by the invention can be used for carrying out cluster control on the electric heating load in the power grid, and the power vacancy of the power grid is reduced within a certain time period under the condition of ensuring the comfort degree of a user. According to the invention, smooth tracking of power grid powervacancy can be realized, and electric energy quality problems of frequency reduction and the like caused by power vacancy are relieved.

Description

Technical field [0001] The present invention relates to an electric heating load control method for reducing power grid power shortage, and belongs to the technical field of power demand side response. Background technique [0002] When a power shortage occurs on the power generation side of the power system, the system frequency will be reduced. The demand side response can solve the problem of mismatch between supply and demand at a relatively low cost, promote the consumption of new energy and reduce the power shortage. [0003] Demand-side response is a form of supply-demand interaction in which the market uses price signals or incentives to encourage and guide power users to actively change their conventional power consumption methods to promote the optimal allocation of power resources and maintain the safe and reliable operation of the power system. In the demand side response, "virtual energy storage" and "energy efficiency power plant" are two entry points of the same rese...

AI Technical Summary

Problems solved by technology

[0005] The virtual energy storage model of the electric heating load generally adopts the equivalent thermal parameter (ETP, equivalent thermal parameter) model, and its main idea is to equate the cooling (heat) quantity inside the room (cabinet) and the external environment and electric energy conversion into resistance and capacitance As well as power supply and other related circuit components, using circuit knowledge to analyze the relationship between temperature and energy conversion, the model has no partial information on electric energy parameters, and the model cannot reflect the feedback impact of temperature control load state changes on the power grid; it is impossible to realize multiple temperature control and participate in the demand side at the same time response

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